Okay, so this doesn't really count as a glitch, but seeing as I don't know of anywhere better to put some corruption footage, I might as well put this here.

I was casually looking at some DKC Corruptions footage from some guy, and apparently he ended up discovering what may as well be either an anti-piracy message, or something that shows up as the result of using the wrong Game Pak for the system. Follow this link(not sure how to make the video appear on here) and head to around 2:30, and you should see it. It's pretty interesting in my opinion.